Secure and Adjustable Fit: Features a tightening knob to fit various pole sizes, ensuring stability in windy conditions. Weather-Resistant Durability: Made from high-density plastic that resists fading, cracking, and wear for outdoor longevity. Stable Yet Portable Design: Lightweight when empty; supports up to 110 lbs when filled with sand or water. Non-Slip Safety Base: Grips tile, wood, and concrete surfaces to prevent movement and enhance safety. Built-In Handle for Easy Lifting: Compact with an integrated handle for effortless carry and seasonal storage. Stylish and Versatile Look: Textured design complements décor and fits most standard patio umbrellas. Tool-Free, Quick Assembly: Assembles in minutes with no tools required and cleans easily. Item Specifications: 13.78" H x 20.1" W x 20.1" D Neck Height 13.78"; Neck Diameter 2.17"; Base Height 4.73"; Base Diameter 20.08"; Hole Diameter 1.50" - 1.89"